I do think it would make a lot more sense if they'd get a Captain for two years instead of only one. Angelina was there for one year only, and so they are now forced to go through another change.

Wood was there for three years, and that was a good thing for the team. You had a captain who knew his players.

I believe Harry should be captain, as he would be the best choice. He is by far the best player around, and has shown his leadership(DA). As for tactics, there's always his team mate Ron who could help him